oh man, turning into an India vs China again. HQ-9 was supposedly developed on the basis of S-300 using PAC-2 guidance. I'm not sure how SM-2 compares to PAC-2. Looking at the range, it seems that extended version of the standard definitely has longer range. Anyhow, aside from that. If we go by shipbuilding capability, it would be South Korea/Japan as number 1, China as number 3 and India as number 4. Really, even though China's shipbuilding industry has really taken off, it's still not in the league of South Korea or Japan. India is farther behind. Really, Any naval expansion China could be matched by Japan or South Korea just because of the quality of the shipyards. Anyhow, my point is that there is no point separating China from Japan, because both countries use subsystems from other countries. China maybe a little less, but still currently dependent on German engines, French control systems and Russian radars. Japan will have the best navy in Asia for the forseeable future.